www.inventecesc.com

NAS vs. SAN Presentation

Compare NAS with SAN.Introduction to Wolfman.What is Scyld from Penguin.

www.inventecesc.com

Traditional Mode DAS

Direct

Attached

Storage

www.inventecesc.com

• High performance for data access.

• Ease of installation and management.

• Base on Ethernet Infrastructure.

What is NAS?

www.inventecesc.com

• Customized network device.

• Integrated storage device.

• Base on Fiber infrastructure.

• Isolated storage device.

What is SAN?

www.inventecesc.com

Major Differences (NAS vs. SAN)

• NAS

Provide great spaces for application server to be integrated.

(Like NFS, Mail, Web, FTP…etc)

• SAN

Separate servers and storage devices into different units for management.

(Like Database, VoD, Backup…etc)

www.inventecesc.com

Today – Total Solution– Combines the best of

both technologies– Enhances NAS with

SAN scalability and management

– Provides access to storage network backup, disaster recovery and storage management

– Reduces overall management complexity

NAS

SAN

Integrated Storage Device

www.inventecesc.com

Future iSCSI

• internet SCSI• IETF StandardPlease refer to

RFC3347…

• Enhances with SAN’s original Infrastructure

www.inventecesc.com

Wolfman

www.inventecesc.com

Surface of Wolfman (front)

www.inventecesc.com

Details for bladDual XEON

CPU

Hot-swap mid-plane connector with dual GE, KVM, Serial, USB, dual IPMI

ServerWorks GE NIC,PCI-X, & IDE RAID

PMC daughter card(or 2nd IDE drive)

Dual USB

IDE drive

ServerWorks North Bridge

ServerWorks South Bridge (under drive)

ATI Video

www.inventecesc.com

+

SATA or FC Daughter Card

SATA or FC Disk Blade

Server Blade

Disk Blade

What is FRODO

www.inventecesc.com

Field-Replaceable Mid-Plane Redundant Power Supplies (3+1)

Redundant Fans (6+6)

1 or 2 GE/10GE multi-function CHAMPS (switch/management) modulesIntegrated KVM switch, USB

Surface of Wolfman (rear)

www.inventecesc.com

8 x GE External Ports

10/100 Port + Serial Port

10GE add-on

card (not shown)

2x10GE to other

CHAMPS

16 x GE Ports to Server Blades

(optional 2x10GE to

center 2 slots)

IPMI Buses(incl.

Keyboard/Mouse/Serial)

Details for CHAMPS

www.inventecesc.comFIRST SECOND THIRD LOWEST (not necessarily worst)

3UP 400.LV 3UP 400.* IBM HS20 IBM HST HP BL20p G2 HP BL40p RLX 3000i RLX 2800i DELL 1655MC SUN Rack Units/Chassis 4 4 7 6 6 6 6 6 3 3Chassis/Rack 10 10 6 7 6/7 6/7 7 7 14 14Servers/Chassis 12 6 14 8 8 2 10 10 6 16Servers/Rack 120 60 84 56 48/56 12 70 70 84 196Servers/U 3 1.5 2 1.3 1.3 .3 1.7 1.7 2 4.7No. CPU Type 2 P4 XEON LV 2 P4 XEON 2 P4 XEON 2 P4 XEON 2 P4 XEON 2/4 P4 XEON 2 P4 XEON 2 P4 XEON 2 PIII 1 Sparc IiiGHz/CPU 1.6, 2.0, 2.4 3.06 2.4, 2.6, 2.8 2.8 2.8, 3.06 1.5, 2.0, 2.8 3.06 2.8 1.26, 1.4 0.65 SparcCPUs/Rack 240 120 168 112 112 48 140 140 84 196CPU/U 6 3 4 2.6 2.6 1.2 3.4 3.4 4 4.7Total Xeon GHz/U 14.4 9 11.2 7.3 7.8 3.4 10.2 9.5 - -Total PIII GHz/U - - - - - - - - 5.6 -Memory Bus 400/533 800 400, 533 400 533 533 533 533 133 133Memory Type PC2100 PC2100 PC2100 PC2100 PC2100 PC2100 PC2100 PC2100 DDR/ECC DDR/ECCL2 Cache 512KB 512KB 512KB 512KB 512KB 512KB 512KB 512KB 512KB 512KBL3 Cache - - - - 512MB/1GB 1/2GB - - - -Min/Max RAM 512MB/4GB 512MB/8GB 512MB/8GB 512MB/8GB 512MB/8GB 512MB/12GB 512MB/8GB 512MB/8GB 512MB/2GB 512MB/2GBRAM DIMMS 2 4 4 4 4 4 4 4 2 2

Internal Disk2x ATA or 2/4x 180GB SATA

2x ATA or 2/4x 180GB SATA

2x73GB SCSI or 2x40GB ATA

2x146GB SCSI 2x146GB SCSI 2x146GB SCSI 2x ATA 2xGB ATA 2x/73GB SCSI 1x30GB ATA

Ethernet/Blade 2/4 GE 2/4 GE 2 GE 2 GE 3 GE + 1 FE 5 GE + 1 FE 2 GE + 1 FE 2 GE + 1 FE 2 GE 2 GE + 1 FE10GE External YES YES - - - - - - - -Optional FC Interface 2 FC2/M 2 FC2/M 2 FC2/M 2 FC2/M 2 FC2/M 2 FC2/M 2 FC2/M 2 FC22 FC2/M - -PCI-X/PMC Slots 1 OF EITHER 1 OF EITHER 0/0 0/0 - 2/0 0/1 0/1 - -Watts/Blade 125 250 150** 150 1200 250 250 44Watts/Chassis 1980 1980 2400 2400 3000 3000 1048 850Power Supply 660W 3+1 660W 3+1 1200W (1+1)2 DC Bus 1+1 DC Bus 1+1 DC Bus 1+1 1500W 2+1 1500W 2+1 1048W 1+1 850W 1+1KW/Rack 19.8 19.8 14.4 14.4 21 21 14.7 9.1Power Type AC AC AC DC/NEBS DC/AC DC/AC AC AC AC ACKVM Switch/Discrete Y/N Y/N Y/N Y/N N/N N/N N/With Adapter N/With Adapter Y/N N/N

Blade Server Feature Comparison

www.inventecesc.com

New Test Tool-- Scyld

Structure of Scyld.What is PMB.How it works.

www.inventecesc.com

Structure of Scyld

www.inventecesc.com

PMB Functions

PingPongPingPingSendrecvExchangeBcastAllgatherAllgathervAlltoall

ReduceReduce_scatterAllreduceBarrier

www.inventecesc.com

PingPong

www.inventecesc.com

PingPing

www.inventecesc.com

Sendrecv

www.inventecesc.com

Reference

• 徐志明 (2001) ， <Management of Network-Based Storage System 網路儲存系統之管理 >，國立中興大學資訊科學研究所碩士論文，未出版。

• http://www.adaptec.com/worldwide/product/markeditorial.html?cat=/Technology/iSCSI&prodkey=iscsi_learn

• http://www.lancom.com.tw/Express/File/express25.htm

• http://www.topsnet.com.tw/jerry/nas%26san.htm&e=7629• http://www.scyld.com/

• http://www-unix.mcs.anl.gov/mpi/mpich/

• http://www.mpi-forum.org/